Unit 7. Saving energy

TEACHER: DANG DINH MINH
LONG BINH SECONDARY SCHOOL
WARMLY WELCOME TO OUR ENGLISH CLASS
BRAINSTORMING
TV Radio Refrigerator


































































































Electrical appliances
Fan
Light
Washing machine Tumble dryer
Unit 7 : SAVING ENERGY
P46: READ
ENGLISH 9
In Western countries, electricity, gas and water are not luxuries but necessities. Companies now realize that consumers want products that will not only work effectively, but also save money.
For most North American households, lighting accounts for 10 percent to 15 percent of the electricity bill.
However, this amount can be reduced by replacing an ordinary 100-watt light bulb with an energy-saving bulb. These bulbs use ¼ of the electricity of a standard bulbs and last eight times longer. Therefore consumers can save about US$7 to US$21 per bulb.
In Europe, there is a labeling scheme for refrigerators, freezers, washing machines and tumble dryers. The label tells the consumers how much energy efficiency each model has, compared with other appliances in the same category.
Ultimately, these innovations will save money as well as conserve the Earth’s resources.
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T/F statements
Which of the following is the best summary of the passage?

1. Energy-saving bulbs should be used to save electricity.
2. In Western countries electricity, gas, and water are necessities.
3. North American and European countries
are interested in saving money and
natural resources.
4. Labeling schemes help save energy.

ANSWER THE QUESTIONS
1. What are Western consumers interested in?
- They are interested in products that will not only work effectively, but also save money.
2. What can we do to spend less on lighting?
- We can use energy-saving bulbs instead of ordinary bulbs.
3. Mrs. Jones uses only two ordinary bulbs and she pays US$8 for lighting. How much will she pay if she uses two energy- savving bulbs instead?
- She will pay US$2.
4. What is the purpose of the labeling scheme?
- It helps the consumers know how much energy effeciency the appliances are.
5. Why should we save energy?
- Because we will save money and conserve the Earth’s resource
Tháp Rùa tại Hà Nội tắt đèn trong Giờ Trái Đất của tác giả Bùi Hoàng Hải
Giờ Trái đất: Hội An tắt điện, “bật” đèn lồng
Discuss:
What should we do to save money and natural resources ?
More ideas:
- Use solar energy instead of coal , gas and oil .
- Use energy – saving household appliances like bulbs , refrigerators , stoves , cookers …
- Reduce the amount of water and electricity we use .
- Turn off the faucets , the TV or radio when we do
not use them …
Home work:
- Write down 5 sentences about how to protect our environment.
- Learn by heart new words.
- Prepare for new lesson ( write ).
GOOD BYE
GOOD BYE